最幸福的人是那些发现幸福是一种选择而不是环境的结果的人。
The happiest people are those who have discovered that happiness is a choice and not a result of circumstances.
The natural and moral world is the two-fold object of man's rational care.
伟大的事情永远不会来自舒适区。
The duty of man is the same in respect to his own nature as in respect to the nature of all other things.